Question 1

What is the biosphere classified as?

Accepted Answer

the realm of life

Answer

the realm of rocks

Answer

the realm of air

Answer

the realm of water

Question 2

What is the primary component of the hydrosphere?

Accepted Answer

water

Answer

rocks

Answer

living organisms

Answer

air

Question 3

Which layer of the atmosphere is closest to Earth's surface?

Accepted Answer

troposphere

Answer

stratosphere

Answer

thermosphere

Answer

mesosphere

Question 4

What percentage of Earth's water is found in the ocean?

Accepted Answer

about 96.5 percent

Answer

about 80 percent

Answer

about 75 percent

Answer

about 50 percent

Question 5

Which of the following is not a part of the geosphere?

Accepted Answer

water vapor

Answer

the mantle

Answer

the crust

Answer

the inner core

Question 6

What role does the hydrosphere play in Earth's climate?

Accepted Answer

helps moderate Earth's climate

Answer

provides oxygen

Answer

supports all life

Answer

creates landforms

Question 7

Which component of the atmosphere is essential for living things?

Accepted Answer

oxygen

Answer

nitrogen

Answer

water vapor

Answer

carbon dioxide

Question 8

What major processes change the surface of the geosphere?

Accepted Answer

weathering, erosion, and deposition

Answer

compression and expansion

Answer

photosynthesis and respiration

Answer

condensation and evaporation

Question 9

What do bacteria and other organisms do when living things die?

Accepted Answer

break down their nutrients

Answer

emit carbon dioxide

Answer

create new plants

Answer

produce oxygen

Question 10

Which sphere includes glaciers and icecaps?

Accepted Answer

hydrosphere

Answer

geosphere

Answer

biosphere

Answer

atmosphere

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